402284916 has 36 divisors (see below), whose sum is σ = 1109332224. Its totient is φ = 121904400.

The previous prime is 402284903. The next prime is 402284921. The reversal of 402284916 is 619482204.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×402284916² = 323666307282254112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507540 + ... + 508331.

It is an arithmetic number, because the mean of its divisors is an integer number (30814784).

Almost surely, 2^402284916 is an apocalyptic number.

It is an amenable number.

402284916 is an abundant number, since it is smaller than the sum of its proper divisors (707047308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402284916 is a wasteful number, since it uses less digits than its factorization.

402284916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015892 (or 1015887 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 402284916 is about 20057.0415565207. The cubic root of 402284916 is about 738.2065872395.

The spelling of 402284916 in words is "four hundred two million, two hundred eighty-four thousand, nine hundred sixteen".